Revolving thread guiding flier



Oct. 12, 1948. NAU-TOURQN 2,451,352

REVOLVING THREAD GUIDING FLIER Filed Sept. 21, 1945 [nae/via 41551??- Mia-72mm W M w&.

Patented Oct. 12, 1948 UNITED STATES PATENT OFFICE REVOLVING THREAD GUIDING FLIER Albert Nau-Touron, Le Vesinet, France, assignor to Societe a responsabilite limitee Fonderie De Precision, Nanterre, France Application September 21, 1945, Serial No. 617,879 In France October 1, 1941 Section 1, Public Law 690, August 8, 1946 Patent expires October 1, 1961 The use of the free traveller for guiding the thread avoids any deterioration of the thread, by restricting or eliminating obliquity of the uncoiled portion of the same regarding the bobbin axis, whereby said thread may thus be wound or unwound perpendicularly to said axis.

The invention thus defined as to its essential principle may be embodied in various ways which all are comprised within the scope of the invention, but which may differ between each other as to the shape, the constitution, and the location of the traveller and of its guiding means.

The invention is extended to a number of detail features constituting the main feature and particularly to the following features which may be applied separately or in various combinations:

(a) The traveller which can be of any suitable material, comprises at least one slot for guiding the traveller in its sliding motion along the rod, and a widened guiding aperture through which passes the thread.

(1)) The traveller may be provided, on its end opposite to the guiding means of the thread, with a balancing weight acting by centrifugal effect.

(c) The guiding rod, which ofiers any suitable cross-section, may be either rigid or flexible.

(d) The traveller and its guiding-means are in combination with absorbing devices adapted to restrain traveller stroke.

is) The revolving thread guiding flier, which may be provided with one or more travellers, is in combination with revolving means such as balls or the like and with means for rotational guiding comprising ball or roller bearings.

The device which is the object of this invention is liable to very extensive application, in particular:

(1) To throwing machines provided with rotary spindles.

2 To doubling devices by endways unwinding the thread such as bobbins using fixed or rotary spindles and more especially to bobbins described and illustrated in French Patent Serial No. PV 457,738 filed on May 9, 1941, bythe applicant, for Expanding coil-carrying bobbins.

The invention is still further concerned with other particular objects which will be made clear from the following description, referring to the accompanying drawing, given solely by way of example, and in which:

Fig. 1 is a general elevation, with part section,

of a revolving thread guiding flier according to the invention.

Figs. 2 and 3 are plan views of travellers. Fig. 4 is a part view showing another embodiment of a revolving thread guiding flier.

Fig. 5 is a corresponding view of an alterna tive.

Fig. 6 is a section through line VlII-VIII of preceding figure.

Fig. '7 illustrates another embodiment.

Fig. 8 is a section showing the revolving mounting of a revolving thread guiding flier.

In the form of embodimentmore especially illustrated by Fig. l, the revolving thread guiding flier which is rotatively mounted on spindle I of a textile machine provided with bobbins, such as throwing, reeling, winding or doubling machines, the bobbin being shown in dots and dashes in 2, comprises a body 8 carrying two arms 4 and 5 provided with bores into which are adjustably mounted bent rods 6. The device may comprise a single rod 6 as shown. It may also be provided with two bent rods adjustably mounted into the drilled portion of arms 4 and 5.

According to an important feature or the invention, the thread is guided in the revolving thread guiding flier by means of a traveller 1 freely mounted on rod 8 and comprising an eye 8 through which passes the yarn. Travellerl can be loaded, if so desired, by means of a tube 9 sliding on the rod 8, the weight of which may be variable. The ends or the straight vertical portion of the rod carry rubber rings i0 and I i acting as cushions or absorbers at the extreme points of the traveller stroke.

This traveller I, which is free to slide along the rod, allows of a. perpendicular unwinding of the thread in respect of the bobbin axis and avoids, regarding said axis, an unwinding of the same the obliquity of which is prejudicial to its quality and appearance due to friction or skidding which may occur between the unwinding yarn and the corresponding portion of the thread still wound round the bobbin.

The weight of traveller I, that of load 9 and eventually a little obliquity which is given to rod 6 regarding bobbin axis can be so combined as to bring to zero the tensile components of the thread upon the traveller so that the latter will ensure correct unwinding of the thread as indicated above.

Traveller 'l of Fig. 1 is shown in plan in Fig. 2. In order to avoid rotational'displacment of the traveller on rod, said rod, as well the corresponding aperture of the traveller may be given an oblong section. Rotational displacement of traveller la round rod 60 may also be restricted by providing said traveller with a balancing mass H (Fig. 3), acting by centrifugal efiect.

Rodi may be rigid or flexible. This rod, while rigid, may at the same time bemade to comprise a resilient portionsuch as a loop M, as illust ated by the embodiment shown in Fig. Fl.

In he example of Fig. 4, the general frame 15 of the revolvingthread guiding flier is rigid, and may, in particular, be of light or extra-light alloy. In order to guide traveller lb a removable rod M is mounted, upon this frame and is provided with springs Illa and I I a acting as resilient abutment for the traveller at either end of its stroke. This rod 8d may be removed and replaced by means of unscrewing screw it. As an alternative for screw IS, a simple spring-lock or a sliding look similar to I1 as shown in Fig. 5' may be substituted. In this embodiment, traveller 1c is guided not only by rod 611. but also, as

shown in Fig. 6, by the side branch of frame i5.

The guiding of the traveller can be obtained through two parallel rods or through one rod 6a having the shape of a hair-pin bent as shown in Fig. 7. In this case the absorbing means may be constituted by a rod or a spindle provided with cushions such as-l8 mounted through traveller 1d and thrusting at either end of its stroke against the lower and upper transverse connections of said two parallel rods.

The rotative mounting of the revolving thread guiding flier can be carried out in various ways.

Inthe embodiment shown in Fig. 1, body 3 is provided axially with a threaded axle l9 held in place by a block-nut 20. On Fig. 8, body 8a is provided with an axial rod 2| rotatably mounted into a corresponding bearing 23. This rod ends on the spindle, arms projecting irom'said body,

a nod secured to one of said arms and adapted to be parallel to the axis of the spindle, a traveller freely mounted on said rod, means carried by said traveller and adapted to guide the thread through said traveller, .and absorbing means adapted to restrain the stroke of said traveller.

4. Revolving thread guiding flier for textile machines provided with spindles for rotating bobmachines provided with spindles for rotating bob-' bins having a body, means adapted to mount rotatably said body on the spindle, arms-pro- Jecting from said body, a rod secured to one of said arms and adapted to be parallel to the axis of the spindle, a traveller freely mounted on said rod. means carried by said traveller and adapted to guide the thread through said traveller, and

resilient devices located on said rod adapted to act as resilient abutments for said traveller at either end of its stroke.

6. Revolving thread guiding flier for textile machines provided with spindles for rotating bobbins having a body, means adapted to mountrotatably said body on the spindle, arms projecting from said body, a rod secured to one of said arms and adapted-to be parallel to the axis of the spindle, a traveller freely mounted on said rod comprising a tubular body for sliding on said rod, means carried by said traveller and adapted to. guide the thread through said travin a spherical portion 24 constituting a revolving surface. Arm 4a and rod Be, in this embodiment, may be balanced by a load 25.

It is obvious that the forms of embodiment herein described and illustrated are given solely as indications and are by no means restrictive. Any changes or alternatives which do not alter the chief features stated above, nor the objective in view, remain comprised within the invention's scope.

What I claim as my invention and desire to secure by Letters Patent is:

l. Revolving thread guiding flier for textile machines provided with spindles for rotating bobbins having a body, means adapted to mount rotatably said body on the spindle, arms projecting from said body, a rod secured to one of said arms and adapted to be parallel to the axis of the spindle, a traveller freely mounted on said rod, and means carried by said traveller and adapted to guide the thread through said traveller.

2. Revolving thread guiding flier for textile machines provided with spindlesfor rotating bobeller', means adapted to avoid rotative displacement of said traveller round said rod, and absorbing means adapted to restrain the stroke of said traveller.

7. Revolving thread guiding flier for textile machines provided with spindles for rotating bobbins having a body, means adapted to mount bins, according to claim 1, having absorbing means adapted to restrain the stroke of said traveller.

3. Revolving threadguiding flier for textile machines provided with spindlesfor rotating bobbins having a body, an axial rod secured in said body, means allowing rotation of said axial rod rotatably said body on the spindle, arms pro- Jecting from said body, a set of two parallel rods secured to one of said arms and adapted to be freely mounted on said set of two parallel rods comprising a body slidable thereon, means carried by said traveller and adapted to guide the thread through said traveller, and absorbing means adapted to restrain the stroke of said traveller.

8. Revolving thread guiding flier for textile machines provided with spindles for rotating bobmachines provided with spindles for rotating bobbins having a body, means adapted to mount rotatably said body on the spindle, arms pro- Jecting from said body, a hairpin shaped rod stroke of said parallel to the axis of the spindle, a traveller' secured to one of said arms both branches of said rod being adapted to be parallel to the axis of the spindle, a traveller freely mounted on said rod comprising a body for sliding on both branches of said rod, means carried by said traveller and adapted to guide the thread through said traveller, and absorbing means adapted to restrain the stroke of said traveller.

10. Revolving thread guiding flier fortextile machines providedwith spindles for rotating bobbins having a body, means adapted to mount rotatably said body on the spindle, arms projecting from said body, a set of two parallel rods secured to one of said arms and adapted to be parallel to the axis of the spindle, transverse connections adapted to connect respectively the lower and upper ends of said rods, a traveller freely mounted on said set of two parallel rods comprising a body for sliding on said two parallel rods, means carried by said traveller and adapted to guide the thread through said traveller, and a spindle provided with cushions mounted through said traveller and adapted to thrust at either end of its stroke against said transverse connections.

ll. Revolving thread guiding flier for textile machines provided with spindles for rotating bobbins having a body, means adapted to mount rotatabiy said body on the spindle, arms pro- .iecting from said body, a rod secured to one of said arms and adapted to be parallel to the axis of the spindle, a traveller freely mounted on said rod comprising a tubular body for sliding on said rod, means carried by said traveller and adapted to guide the thread through said traveller, a balancing weight secured to said body and adapted to avoid angular displacement of the same round said rod by centrifugal effect, and absorbing means adapted to restrain the stroke of said traveller;

ALBERT NAU-TOURON.

REFERENCES CITED UNITED STATES PATENTS Name Date Littleiieid Feb. 22, 1916 Number 

